Here are all valid variables, listed in alphabetical order.
The default value is given between parentheses.
.Bl -tag -width indent
-.It Va AddressFamily Li = ipv4 | ipv6 | any Po ipv4 Pc Bq experimental
+.It Va AddressFamily Li = ipv4 | ipv6 | any Pq any
This option affects the address family of listening and outgoing sockets.
If
.Qq any
will turn off packet encryption.
.It Va Compression Li = Ar level Pq 0
This option sets the level of compression used for UDP packets.
-Possible values are 0 (off), 1 (fast) and any integer up to 9 (best).
+Possible values are 0 (off), 1 (fast zlib) and any integer up to 9 (best zlib),
+and 10 (lzo).
.It Va Digest Li = Ar digest Pq sha1
The digest algorithm used to authenticate UDP packets.
Any digest supported by OpenSSL is recognised.